During the presentation, this slide was at the end and time was short, so they just mentioned this one set. But yes, the slide does say "Saga Vehicles with Figure", which could mean anything.
It could mean a new exclusive assortment of new sets from the movies ('Saga' usually means all six movies, not just OT). Or, it could be like the last time TRU carried an exclusive "Saga Vehicles with Figure" assortment, which ended up being just a repainted STAP and repainted Speeder Bike.
In other words, you may be right that there will be more, but since there is a high likelyhood that the other sets will just be more repaints/repack sets, no one really cares enough to comment on it.
Odds are there'll be one other set alongside it, like they did with the speeder bike and STAP. If they are wise, it would be the battle pack's gunship ball turret with a clone. But more likely it'll another speeder bike with the Endor Luke from the battle pack, or that Hoth speeder bike .